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Linux Kernel IP Vulnerability 2

On the week of July 15th, researcher Juha-Matti Tilli disclosed a vulnerability in the Linux kernel to the kernel maintainers, the National Cyber Security Center - Finland (NCSC-FI), CERT Coordination Center (CERT/CC), and Akamai. The vulnerability, CVE-2018-5391, is a resource exhaustion attack triggered by a specially crafted stream of IP datagrams that cause expensive processing within the Linux kernel. This vulnerability is similar to the Linux TCP vulnerability announced August, 6th, 2018.

In preparation for the public disclosure of the vulnerability, Akamai prepared and began deploying patches for its network.  Simultaneously, Akamai has been working with external parties to ensure the fix was sufficient to protect its network and customers. Akamai continues to work closely with the vulnerability coordinators at NCSC-FI and CERT/CC to aid the vulnerability disclosure, testing, and notification processes.

Linux Kernel TCP Vulnerability

On the week of July 15th researcher Juha-Matti Tilli disclosed a vulnerability he discovered in the Linux kernel to the kernel maintainers, the National Cyber Security Center - Finland (NCSC-FI), CERT Coordination Center (CERT/CC), and Akamai. The vulnerability, CVE-2018-5390, is a resource exhaustion attack triggered by a specially crafted stream of TCP segments which creates expensive processing within the Linux kernel.

In preparation for the public disclosure of the vulnerability, Akamai prepared and began deploying patches for its network.  Simultaneously, Akamai has been working with external parties to ensure that the solution works, verifying that the fix was sufficient to protect its network and customers. Akamai continues to work closely with the vulnerability coordinators at NCSC-FI and CERT/CC to aid the vulnerability disclosure, testing and notification processes.

This issue impacts nearly all current Linux systems, while versions of the Linux kernel release 4.9 or later being the most susceptible. Release version 4.8 and older, while still impacted, require more malicious traffic to exhibit the same level of resource exhaustion.

Why would customers choose me?

Competitive Differentiation Guide for Financial Services in Digital India

We are a young nation 1.3 billion strong, of which just about 500 million are active internet users. Not a small number by any means.  We have world's second largest pool of internet users and our online population is larger than the total population of United States of America!

However, what we as a nation along with the whole world, really have our eyes on, are those next billion users coming online. We all are witnessing that future in the making as India's policy makers, telecom operators, regulators and businesses across various industries are collectively and relentlessly working to make it happen. Reliance Jio added 100 million users to India's internet population just in 2017 and we continue to add 10 million users per month accordingly to Google. This incredible scale and pace of India's digital revolution, presents an unprecedented growth opportunity for all business including financial services viz. banking, asset management, credit cards, payments or insurance.

Written by Meyer Potashman

On May 25, 2018, the EU General Data Protection Regulation (GDPR) went into effect. In preparation, Akamai, like every other company that does business with or interacts in any way with individuals in the EU, needed to re-evaluate our approach to data protection and privacy to ensure that we are compliant with the new law. Since GDPR requires that companies evaluate the privacy practices of their suppliers and subcontractors, customers have been asking us about how we protect the personal data on our platform from both a privacy and security perspective. In this blog post, we discuss how our InfoSec team approaches some of these considerations.

Earlier this year, Akamai mitigated the largest DDoS attack in its history, fueled by a new reflector, memcached. The attack targeted one of our software clients and broke through the 1 Tbps threshold for the first time. Memcached was developed to act as a distributed memory caching system. Since the protocol uses UDP, an insecure protocol, and carries the potential for tremendous amplification, it has the key traits of a successful reflection-based attack vector. This Attack Spotlight takes a deeper look into the memcached attack vector that redefined the term "largest attack" and is the first part of our State of the Internet Security Summer 2018 report.

Akamai CEO and co-founder Tom Leighton discusses the company's cybersecurity and data protection business. He speaks with Caroline Hyde from the Boston Institute of Contemporary Art on Bloomberg Technology. (Source: Bloomberg)

Part 2: The Dark Side of APIs

Ryan Barnett, Principal Security Researcher, Akamai

Elad Shuster, Senior Security Researcher, Akamai

During its research into Credential Abuse attack campaigns, Akamai's threat research team conducted an analysis of web logins to gain insights into how widespread the adoption of API-based logins is and whether or not this trend also affects attackers and attack campaigns.  It will come as no surprise that API-based logins are highly targeted by credential abuse attackers for a variety of reason.

 

The Dark Side of APIs: Part 1, API Overview

Ryan Barnett, Principal Security Researcher, Akamai

Elad Shuster, Senior Security Researcher, Akamai

 

API Overview

Application Programming Interfaces (API) are a software design approach which enables software and system developers to integrate with other systems based on a defined set of communication methods. APIs serve as software building blocks and allow for software reuse - essentially allowing fast development of new systems based on existing capabilities.


Overview

Credential abuse (CA) is a trend that is here to stay. It affects almost every one of us. There are attackers trying to break into every online account and the vast majority of these attacks are happening silently in the background. In the past, credential abuse tools were written and distributed in closed forums and among air-gapped societies. Now, they are widely available; there is a highly active market trade of "cookbooks" - configurations and instructions on how to perform successful logins against a website.

 

Days of clear-text HTTP, the original but insecure foundation for data communication over the web, are numbered. Over the past few years, Google (and others such as the Internet Architecture Board, Mozilla, and Apple) have nudged developers to encrypt and authenticate their websites using HTTPS which layers HTTP over TLS (Transport Layer Security). This includes measures such as ranking HTTP sites lower in Google search results, not supporting powerful features such as geolocation and service workers, and marking a large subset of HTTP sites as "not secure". As a result, there has been a significant increase in the adoption of HTTPS, resulting in a more secure World Wide Web.